Tinian

Tinian () is one of the three principal islands of the Commonwealth of the Northern Mariana Islands (CNMI). Together with uninhabited neighboring Aguiguan, it forms Tinian Municipality, one of the four constituent municipalities of the Northern Marianas. Tinian's largest village is San Jose. Tinian is just south of the most inhabited island Saipan, but north of the populated Rota to the south. The island is home to many WW2 historical sites, cattle ranches, and beaches. There was a 5-star casino that operated from 1998 to 2015; remaining are other hotels/resorts and a golf course. The main access to Saipan is by a short airplane ride from the international airport, or by a charter boat.
Tinian is a part of the United States, and is also a part of the CNMI. Along with Guam, they are the westernmost islands of the US in the Pacific (technically very far east).